Cambridge Soundworks Oontz

Cambridge Soundworks' Oontz Angle 3 Plus manages to deliver fairly rich sound despite its small size and relatively low price. It also has excellent battery life, is water-resistant and has speakerphone capabilities.

Some treble push.

Ignore the goofy name: The Oontz 3 Plus delivers about as good sound as you'll get from a $35 Bluetooth speaker.

The ; offers better sound than similarly priced mini Bluetooth speakers. It's attractively styled and includes speakerphone capabilities and USB charging for smartphones. Battery life is also good (over 10 hours at more moderate volumes).

Doesn't play incredibly loud; AC adapter is required to power/charge the unit (rather than a 5V Micro-USB charger).

While it doesn't sound as good as its more expensive rivals, the Cambridge SoundWorks Oontz XL is the best big Bluetooth speaker you can get for under $100.